The possibility of producing tuberculin sensitivity by feeding poultry litter.
D000821:Animal Feed; D000818:Animals; D002417:Cattle; D006168:Guinea Pigs; D009161:Mycobacterium / Q000276:immunology*; D011200:Poultry; D014373:Tuberculin; D014374:Tuberculin Test / Q000662:veterinary; D014380:Tuberculosis, Bovine / Q000276:immunology*
D014373:Tuberculin